.card {
    margin-top: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}
.alert ul {
    margin-bottom: 0;
    padding-left: 1.5rem;
}
.invalid-feedback {
    display: block;
    font-size: 0.875em;
    color: #dc3545;
}
.btn-primary {
    background-color: #0d6efd;
    border-color: #0d6efd;
    transition: all 0.3s ease;
}
.btn-primary:hover {
    background-color: #0b5ed7;
    border-color: #0a58ca;
}
.form-control:focus {
    border-color: #86b7fe;
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}
